This article is from the Paris, France FAQ, by Thierry E. Toniutti and Delphine Kensit nemo_n@yahoo.com.
To transfer between the 2 main airports, you can choose from the Air
France Shuttle buses, RER line B, or the taxi. For Air France
passengers traveling from 4 French island territories, the Air France
Shuttle service is free.
Air France Shuttle Services:
CDG > ORLY
From 0600 to 1500*, every 20 minutes
From 1500 to 2300*, every 30 minutes
Leaving from : CDG 2 (Halls A and C - Exit 2 Hall C) - CDG 2 (Halls B,
D and F - Exit 1 Hall B) - CDG 1 (Exit 34, arrivals level)
ORLY > CDG
From 0600 to 2300*, every 20 minutes
Leaving from Orly Sud (Exit K, platform 5) - Orly Ouest (Exit D,
arrivals level)
Average journey time : 50 minutes - FRF 75 / EUR 11.43
RER Line B + Orlyval (connection at Antony):
Times : from 0600 to 2230
Sundays : 0700 to 2255
Every 4/8 minutes
Fare : FRF 104 / EUR 15.85
Taxis:
Approximately FRF 300 / EUR 45.73 (day rate)
 
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